some of it away. pete, as kids, i always looked up to you. now, i'm just trying to look after you. if you cannot afford your medication, call 1-877-niaspan. niaspan is not for everyone, like people with stomach ulcers, liver, or serious bleeding problems. severe liver damage can occur when switching to niaspan from immediate-release niacin. blood tests are needed to check for liver problems. tell your doctor if you have muscle pain or weakness; this could be a sign of serious side effects; this risk can increase with statin use. tell your doctor about alcohol use, if you've ever had gout, or are diabetic and experience increases in blood sugar. flushing, a common side effect, is warmth, redness, itching, or tingling of the skin. ask your doctor about niaspan. fight back. fight plaque. niaspan.